A01Header code — not billable
Typhoid and paratyphoid fevers
- Chapter
- 1. Certain infectious and parasitic diseases
- Category
- A01
- Effective date
- October 1, 2026
Related codes in category A01
A01.0Typhoid feverA01.00Typhoid fever, unspecifiedYesA01.01Typhoid meningitisYesA01.02Typhoid fever with heart involvementYesA01.03Typhoid pneumoniaYesA01.04Typhoid arthritisYesA01.05Typhoid osteomyelitisYesA01.09Typhoid fever with other complicationsYesA01.1Paratyphoid fever AYesA01.2Paratyphoid fever BYesA01.3Paratyphoid fever CYesA01.4Paratyphoid fever, unspecifiedYes
Frequently asked questions
What is ICD-10 code A01?
A01 is an ICD-10-CM diagnosis code for Typhoid and paratyphoid fevers.
Is A01 a billable code?
No. A01 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is A01 in?
A01 falls under Chapter 1: Certain infectious and parasitic diseases.
When did A01 become effective?
A01 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to A01?
A01 belongs to category A01, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.